FR2030295A1 - - Google Patents

Info

Publication number
FR2030295A1
FR2030295A1 FR7003887A FR7003887A FR2030295A1 FR 2030295 A1 FR2030295 A1 FR 2030295A1 FR 7003887 A FR7003887 A FR 7003887A FR 7003887 A FR7003887 A FR 7003887A FR 2030295 A1 FR2030295 A1 FR 2030295A1
Authority
FR
France
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7003887A
Other languages
French (fr)
Other versions
FR2030295B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Engineering Corp
Original Assignee
Nippon Kokan Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Kokan Ltd filed Critical Nippon Kokan Ltd
Publication of FR2030295A1 publication Critical patent/FR2030295A1/fr
Application granted granted Critical
Publication of FR2030295B1 publication Critical patent/FR2030295B1/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/32—Blowing from above
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0025—Adding carbon material
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/06—Deoxidising, e.g. killing
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/10—Handling in a vacuum
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C2007/0093—Duplex process; Two stage processes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0056—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 using cored wires

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
FR7003887A 1969-02-04 1970-02-04 Expired FR2030295B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP798169A JPS4842769B1 (en) 1969-02-04 1969-02-04

Publications (2)

Publication Number Publication Date
FR2030295A1 true FR2030295A1 (en) 1970-11-13
FR2030295B1 FR2030295B1 (en) 1973-03-16

Family

ID=11680602

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7003887A Expired FR2030295B1 (en) 1969-02-04 1970-02-04

Country Status (4)

Country Link
JP (1) JPS4842769B1 (en)
FR (1) FR2030295B1 (en)
GB (1) GB1258534A (en)
SE (1) SE365247B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51120853A (en) * 1975-04-12 1976-10-22 Kiyoshi Iwasaki Cartridge type cosmetics
CN100500874C (en) * 2007-05-09 2009-06-17 北京科技大学 Method of pre-fining molten steel in tapping process

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1535013A (en) * 1966-07-22 1968-08-02 Bethlehem Steel Corp Process for the manufacture of steel and steel conforming or similar to that obtained by this process

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1535013A (en) * 1966-07-22 1968-08-02 Bethlehem Steel Corp Process for the manufacture of steel and steel conforming or similar to that obtained by this process

Also Published As

Publication number Publication date
GB1258534A (en) 1971-12-30
JPS4842769B1 (en) 1973-12-14
SE365247B (en) 1974-03-18
DE2005045B2 (en) 1976-02-19
DE2005045A1 (en) 1971-01-28
FR2030295B1 (en) 1973-03-16

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Legal Events

Date Code Title Description
ST Notification of lapse